/*	Interactive Gravitational Simulator
	Project: IGS Core
	File: ViewNode.h
	Author: Mike Bantegui <mbante2@gmail.com>, Hofstra University 
	Copyright (C) 2012 - 2013 Mike Bantegui

	This file is part of the IGS software package for simulating
	the N-Body problem in real-time. This was developed as part
	of a departmental honors thesis project at Hofstra University
	in the Spring 2012 semester.

	IGS is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	IGS is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

#ifndef IGS_VIEWNODE_H
#define IGS_VIEWNODE_H

#include <vector>
#include "Vector.h"

namespace IGS
{

// Represents a readonly snapshot of the tree structure used in the
// hierarchical force evaluation method.
struct ViewNode
{
	// The Center of Mass of the ViewNode
	const Vector Position;
	// The radius of the ViewNode
	const double Radius;
	// The depth of the ViewNode in the Tree
	unsigned Depth;
	// The number of children contained within the ViewNode
	unsigned NodeCount;
	// The children of the ViewNode
	std::vector<std::shared_ptr<ViewNode>> Branches;

	ViewNode(const Vector &position, const double radius);
};

}

#endif